Machine for manufacturing tiles.



No. 658,79l. Patented Dot. 2, i900. n. LESCH & aroma.

MACHINE FUR MANUFACTURING TILES.

(Application filed Feb. 25, 1898.)

(No Model.) 5 Sheets8heet l.

WITNESSES 2 INVEN TORS- j W 1W .fz Zq "m: cams PETERS co, Pnlfl uwowumnsmu. u c,

No. 658.79l. Patented Oct. 2, I900. n. LESCH & B. POLTE.

MACHINE FOR MANUFACTURING T'ILES. (Application filed Feb 25, 1898.) (N0Moder.) 5 Shgats-8heet 2.

WITNESSES:

we Noam; PETERS co vuoruuma. WASHINGTON. n. c,

No. 658,79l Patentsd'flct. 2, I900. B. LESCH & B. ROLTE.

MACHINE FOR MANUFACTURING TILES.

(Application filed Feb. 25, 1898.)

//V VENTOHS A 7703 EYS.

"n4: mama FEYERS co. vuorpumu, WASHINGTON, n. c

Patented Oct. 2, I900.

No. 658,79I.

' R. LESCH & B. POLTE. MACHINE FOR MANUFACTURING TILES.

(Application filed Feb. 25, 1898.)

.(No Model.)

5 Sheets-Sheet 4.

IN VE NTOHS V m: Norms versus co, wormu'mm WASHINGTON. u, c.

No. 658,79l. Patented Oct. 2,' I900. R. LESCH=& 5;. POLTE.

MACHINE FOR MANUFACTURING-TILES.

(Application filed Feb. 25, 1898.) (No Modal.) 5 Shuts-Sheet 5.

l llll WITNESSES INVENTOR5:

M27 16 A E 4 n4: News Pums co, vnorrxu'rnoq WASNINGTON, u. c,

:ATENT OFFICE.

RICHARD LESOH AND BRUNO POLTE, OF KONSTADT, GERMANY.

MACHINE FORMANUFACTURING TILES.

'srEcIFIcA'rmN forming part of Letters iPatent No. 658,791, datedOctober 2, 1900.

Application filed February 25, 1898. serial No. 671,682- kNo model.)

- is to construct'the machine in such a manner that only the filling andemptying of the mold have to be performed by hand, all the otheroperations being automatically performed by the machine itselff-- Itwill of course be understood that the invention is applicable to theformation of all classes of tiles and similar articles but it will onlybe described-as applied to a machine for manufacturing cement tileswhich may advantageously be used for roofing purposes.

The improved machine consists of four prin-' cipal parts-via, a part forpressing or form-j ing the tile, a part for coloring and smooth ing it,apart for putting on the head-rail, and means for emptying the mold.

In order that our invention may be more readily understood, we havehereto appended four sheets of drawings, to which we will hereinafter'make reference.

Figure 1 illustrates the machine generally in side elevation. Fig. 2 isa plan View of the frame of the machine and some of the working parts.Figs. 3, 4, and 5 are respectively sectional, perspective top, andperspective bottom views of a tile made by the present invention. Figs.6 and 7 are sectional front and side views, respectively, of the moldand the forming and pressing roller. Fig. 8 is a plan View of the sameparts, showing'also the carrying-chains. Fig. 9 is a front elevation ofthe mechanism for forming the head-rail on the tile. Fig. 10 is asectional detail of parts thereof. Fig. 11 is a sectional plan of e thesame parts. Figs. 12, 13, and 14 are respectively a longitudinalsection, a plan view, and a transverse section of the smoothing andcoloring device. Fig. 15 is a longitudinal section of the mechanism forforming the headrail and the mechanism for lifting the mold,

parts being in elevation; and Figs. 15 and I -15? are details of some ofthe driving parts of the machine.

The machine is provided with a table or stand 1, upon which all thedifferent elements are arranged. The mold 3 is upon the left-- hand endof the table and is filled with cement. It is then pushed by theoperator a little to the right until it reaches and engages withcarrying-chains, by means of which it is drawn through the machine andsubjected to the various processes. The mold is released from the chainswhen it has reached the device for forming the head-rail and may then bewithdrawn for emptying by the operator.

The tile a (illustrated by Figs. 3, 4, and 5) is formed on its underside with the projecting rib 19, two angular projections c, and twosemicircular projections d, and the mold 3, as shown by Figs. 6 and 7,corresponds. upper side of the tile is provided with a head-rail 6.Rails 5 are secured to the top of The the table 1 to guide the mold,which is provided with lateral rollers 6 during its passage through themachine. The carryingchains 2 pass along the top of the table outsidethe rails 5, and the mold is connected to them by means of the movablehooks 7, (see Figs. 9 and 11,) attached or hinged to the mold andadapted to be pressed down to engage with the chains. Chain wheels orrollers 8 guide the chains over the top of the table and adjustablewheels or rollers 9 are provided under the table. The filled mold, beingattached to the chains, is first of all drawn to the pressing device A.The essential part of this device consists of a roller 4, the surface ofwhich is formed to correspond with the surface which has to be given tothe tile under process of manufacture, as represented in Figs. 6, 7, and8. This roller is so rotated that its surface speed is greater than thespeed at which the mold travels, and it is preferably mounted invertically moving bearings 10, to which a system of levers 11 andcounterweights 12 are connected. By this arrangement a constant pressureis exerted and the roller is free to lift if it encounters any obstacle,and thus obviates the risk of damage to itself or to the mold. Thepressure exerted by the roller may of course be regulated by adjustingthe counterweights 12, and to enable this to be easily effected thelevers 11 are extended, so as to be within easy reach of the operatorwho is filling the molds. The end of the mold may be sloped or beveled,so that it engages with and leaves the roller without shock. The mold isdrawn under the roller by the chains 2 and the contained cement or thelike is subjected to vertical pressure under and is formed by theroller. At the same time the cement is compressed in a horizontaldirection, owing to the roller traveling at a greater speed than themold, and thus tending to push the cement to the back of the mold. Asmooth tile of great and equal density is thus obtained. It is preferredto give the roller 4 a surface speed which is approximately six timesthe speed at which the mold travels. After leaving the roller 4 the moldand the formed tile are drawn by the chains into and through thesmoothing and coloring device B, which is illustrated by Figs. 12, 13,and 14. A box or receptacle 13, having a perforated bottom, is arrangedto be oscillated or vibrated upon the passage of the mold through thedevice and contains a powdered dry mixture of the desired color andcement. The side of the mold 3 is formed or provided with a rack 14,which during the passage of the mold engages with a wheel 15, which inturn is in gear withawheel 16,mounted on the shaft 17. This shaft isconnected with another shaft or with other shafts, which upon rotationcan, by suitable means evident to skilled mechanics, communicateoscillatory or vibratory motion to the box 13. The passage of the moldthus causes the box to shed some of the contained color upon the tile.In order to insure that the color falls only upon the tile and not overthe table, it is preferred to arrange a hopperor funnel 18 under thebox. The moisture contained in the tile makes the color damp- Thesmoothing of the color is effected by causing the tile to pass undersuitably-shaped elastic or spring controlled knives or wipers l9 and 20.The tile is now drawn to the device indicated at C, (see Fig. 15,) bymeans of which the head-rail is formed and affixed at the point marked 6in Fig. 4. To effect this, the mold must come to rest. The disengagementof the mold from the chains 2 is caused by the inclined planes orprojections 21, formed on the rails 5 and illustrated in Figs. 10 and11. The movable hooks upon the mold come into contact with theseprojections and are lifted thereby out of the links with which they hadbeen previously engaged. Owing to stretching of the chain or othercauses the mold may not always stop in its exact position; but it alwaysstops with its leading edge in front of the rail 22, which extendsacross the mold. The rail 23 is then pressed down, and its tapered orconed edge 24 engages with the grooves or recesses 25 in the mold anddraws this latter to its proper and exact position. The two bars 22 and23 form aspace for the reception of the head-rail and guide it to itsproper place on the front edge of the tile.

The head-rail is formed by the grooved roller 26, which is placed at thebottom of a hopper containing the plastic material or cement. The groovein the roller is of a capacity sufiicient to contain the required massof material, and when the roller is rotated or partially rotated thisamount of material is removed from the hopper and the contents of thegroove drop into the space between the bars 22 and 23, which, as shown,are preferably flared outward at their upper ends. Pivoted to the sideof the framing at 36 is a rain or punch 28, which is capable of passingbetwee" the bars 22 and 23 and pressing the head-rail into place uponthe tile, at the same time giving any desired shape to the upper edge ofthe rail. 37 is a guide-groove for the ram. The operation of thesedevices is as follows: The rod 29, Fig. 15, is reciprocated verticallyby the eccentric 30. (Shown in Figs. 1 and 15.) The upper end of the rod29 is by means of a cross-rod 29 connected to an arm or lever 31,carrying a counterweight 32 and connected to the bar 23, which thusfollows the upward and downward mo vement of the rod 29. Thisrod is alsoformed or provided with a rack 33 to engage with the wheel 34, which isgeared with a wheel secured to the shaft of the roller 26. Thearrangement is such that during each upward or downward motion of therod 29 the roller 26 is rotated through an angle of one hundred andeighty degrees. The lower part of the rod is connected by a link withthe arm carrying the ram 28, which thus also participates in the motionof the rod. This headrail-forming mechanism is so disposed and arrangedthat it is put into operation when the mold comes to rest and put out ofoperation when the head-rail is formed.

Pivoted upon the tablel and illustrated in Figs. 11 and 15 is an arm 38,which is partially rotated by the passage of the mold, inasmuch as themold strikes it and shifts it to one side. Attachedto the arm 38, butbeneath the table, is a second arm 39, which also moves through acertainangular distance and the end of which is adapted to come against aninclined projection upon the lever 41. The end of this lever isconnected to half of a coupling 40 in such a manner that the movement ofthe arm 39 causes the clutch to be put in gear, and thus to start thehead-rail mechanism. (See Fig. 15.) Secured to the shaft of theeccentric 30 and driven from the clutch-wheel by the wheel 45 is a disk42, part of which is recessed to fit upon the clutch-body 40, asrepresented in Fig. 15 When the clutch is moved longitudinally to putthe mechanism into motion, the groove 44 comes opposite to the disk 42and permits rotation. The disk then rotates within the groove and holdsthe clutch in its place until a complete revolution has been effected,when the recessed part 43 again comes IIO in the bottom of the mold. Themold is fur-' nished with a sheet-metal lining 47, which is lifted withthe formed tile and which contains the tile during drying, burning, orother subsequent treatment.

Having now particularly described and ascertained the nature of our saidinvention, we declare that what we claim is 1. In a machine formanufacturing tiles,the

combination of a stationary table, a mold, means for moving the filledmold along and over said table, means for forming, pressing andsmoothing the material in the mold, a screen for sifting powdered coloronto the pressed material in the mold, means for operating said screenfrom the mold, and means for forming the head-rail on the tile,substantially as set forth.

2. In a machine for manufacturing tiles,the combination of a stationarytable, a mold, means for moving the filled mold along and over thetable, a profiled roller for forming,

pressing and smoothing the material in the mold, means for turning saidroller, a screen for sifting powdered color onto the pressed material inthe mold, means for operating the screen from the mold, and means forforming the head-rail on the tile, substantially as set forth.

3. In a machine for man ufactnring tiles,the combination of a table, amold, means for moving the filled mold along said table, a profiledroller, and means for turning said roller at a rate of speed greaterthan the speed of the mold along the table, whereby the material in themold is formed, smoothed, and pressed toward one end of the mold,substantially as set forth.

4. In a machine for manufacturing tiles,the combination of a table,amold, means for fash ioning the tile proper in the mold, and means forforming the head-rail on the tile, the said means comprising astationary forming-rail, a movable forming-rail provided with a taperingedge, adapted to act on the mold to bring it in proper position, meansfor supplying plastic material between said formingrails, and means forcompressing the said plastic material, substantially as set forth.

In testimony that we claim the foregoing as our invention we have signedour names in presence of two subscribing witnesses.

RICHARD LESGH. BRUNO POLTE.

Witnesses:

ERNST KATZ, EDWIN WEISS.

